GB2190741B - Improvements in optical fibres - Google Patents

Improvements in optical fibres

Info

Publication number
GB2190741B
GB2190741B GB8612369A GB8612369A GB2190741B GB 2190741 B GB2190741 B GB 2190741B GB 8612369 A GB8612369 A GB 8612369A GB 8612369 A GB8612369 A GB 8612369A GB 2190741 B GB2190741 B GB 2190741B
Authority
GB
United Kingdom
Prior art keywords
optical fibres
fibres
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB8612369A
Other versions
GB2190741A (en
GB8612369D0 (en
Inventor
Christopher John Groves-Kirkby
Rajinder Singh Sethi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB8612369A priority Critical patent/GB2190741B/en
Publication of GB8612369D0 publication Critical patent/GB8612369D0/en
Priority to PCT/GB1987/000353 priority patent/WO1987007254A1/en
Priority to EP19870903369 priority patent/EP0280688B1/en
Priority to AT87903369T priority patent/ATE51390T1/en
Priority to DE8787903369T priority patent/DE3762043D1/en
Publication of GB2190741A publication Critical patent/GB2190741A/en
Application granted granted Critical
Publication of GB2190741B publication Critical patent/GB2190741B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D57/00—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C
    • B01D57/02—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C by electrophoresis
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
    • C03B2203/16—Hollow core
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B2006/2865—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers couplers of the 3x3 type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02295—Microstructured optical fibre
    • G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/032—Optical fibres with cladding with or without a coating with non solid core or cladding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB8612369A 1986-05-21 1986-05-21 Improvements in optical fibres Expired - Fee Related GB2190741B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB8612369A GB2190741B (en) 1986-05-21 1986-05-21 Improvements in optical fibres
PCT/GB1987/000353 WO1987007254A1 (en) 1986-05-21 1987-05-21 Improvements in optical fibres
EP19870903369 EP0280688B1 (en) 1986-05-21 1987-05-21 Improvements in optical fibres
AT87903369T ATE51390T1 (en) 1986-05-21 1987-05-21 OPTICAL FIBERS.
DE8787903369T DE3762043D1 (en) 1986-05-21 1987-05-21 OPTICAL FIBERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8612369A GB2190741B (en) 1986-05-21 1986-05-21 Improvements in optical fibres

Publications (3)

Publication Number Publication Date
GB8612369D0 GB8612369D0 (en) 1986-06-25
GB2190741A GB2190741A (en) 1987-11-25
GB2190741B true GB2190741B (en) 1990-01-31

Family

ID=10598209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8612369A Expired - Fee Related GB2190741B (en) 1986-05-21 1986-05-21 Improvements in optical fibres

Country Status (3)

Country Link
EP (1) EP0280688B1 (en)
GB (1) GB2190741B (en)
WO (1) WO1987007254A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040482A1 (en) 1998-02-09 1999-08-12 The University Of New Mexico Tunable bragg gratings and devices employing the same
US6151438A (en) * 1998-09-24 2000-11-21 Lucent Technologies Inc. Fiber device having variable refractive index region proximal the core
US6606440B2 (en) * 2000-05-15 2003-08-12 Sumitomo Electric Industries, Ltd. Microstructured optical fiber
US7668419B2 (en) 2006-10-23 2010-02-23 Weatherford/Lamb, Inc. Evanescent sensor using a hollow-core ring mode waveguide
WO2022265835A1 (en) * 2021-06-14 2022-12-22 C. R. Bard, Inc. System and apparatus for photoluminescent laser delivery fiber

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096339A (en) * 1981-04-03 1982-10-13 Chevron Res Radiant energy modulation in optical fibers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL130900C (en) * 1960-11-02
US3455666A (en) * 1966-05-06 1969-07-15 American Optical Corp Method of making laser components
JPS5013056A (en) * 1973-06-04 1975-02-10
FR2368050A1 (en) * 1976-10-12 1978-05-12 Fort Francois Optical fibre consisting of a solid core and liquid in a sheath - the liquid having lower refractive index than the core
US4229197A (en) * 1978-06-12 1980-10-21 International Telephone And Telegraph Corporation Method for making multiple optical core fiber
DE2909356A1 (en) * 1979-03-09 1980-09-18 Siemens Ag Fissionable optical fiber and process for its production
EP0089498B1 (en) * 1980-04-30 1986-08-27 Siemens Aktiengesellschaft Method of making a multi-core optical fibre
DE3234900A1 (en) * 1982-09-21 1984-03-22 Siemens Ag FIBER OPTICAL SENSOR
US4561871A (en) * 1983-12-27 1985-12-31 Corning Glass Works Method of making polarization preserving optical fiber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096339A (en) * 1981-04-03 1982-10-13 Chevron Res Radiant energy modulation in optical fibers

Also Published As

Publication number Publication date
GB2190741A (en) 1987-11-25
WO1987007254A1 (en) 1987-12-03
EP0280688B1 (en) 1990-03-28
EP0280688A1 (en) 1988-09-07
GB8612369D0 (en) 1986-06-25

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950521